National Cyber Awareness System

Vulnerability Summary for CVE-2011-4621

Overview

The Linux kernel before 2.6.37 does not properly implement a certain clock-update optimization, which allows local users to cause a denial of service (system hang) via an application that executes code in a loop.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff64

Hyperlink:https://github.com/torvalds/linux/commit/f26f9aff6aaf67e9a430d16c266f91b13a5bff64

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=769711

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=769711

External Source: MLIST

Name: [oss-security] 20111221 Re: CVE Request -- kernel: tight loop and no preemption can cause system stall

Hyperlink:http://www.openwall.com/lists/oss-security/2011/12/21/6

External Source: CONFIRM

Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f26f9aff6aaf67e9a430d16c266f91b13a5bff64

Hyperlink:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f26f9aff6aaf67e9a430d16c266f91b13a5bff64

External Source: CONFIRM

Name: http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37

Hyperlink:http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.37